B29C 2045/575
Preventing backflow of moulding material to the injection means during after-pressure
Official title: {preventing backflow of moulding material to the injection means during after-pressure}
B29C2045/575 (Preventing backflow of moulding material to the injection means during after-pressure) appears on 11 US grants and 4 published applications in this corpus.
Search patents in B29C- Granted patents
- 11
- Published applications
- 4
- Assignees
- 7
- Inventors
- 20
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
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| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
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| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
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| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
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| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Injection molding machine24 Mar 2026US 12,583,156 B2Nissei Plastic Industrial Co., Ltd.
- Multi-mold block drive device and injection molding machine having the multi-mold block drive device25 Mar 2025US 12,257,752 B2
- Injection molding machine13 Dec 2022US 11,524,433 B2Fanuc Corporation
- Injection molding process13 Jul 2010US 7,754,134 B2
- Mechanism for the automatic manufacturing of articles made from plastic, particularly from recyclable plastic27 Dec 1994US 5,375,991 ASpies Kunststoff-Recycling GmbH Company
- Multi-mold block drive device and injection molding machine having the multi-mold block drive device21 Dec 2023US 2023/0405894 A1
- Injection molding machine16 Nov 2023US 2023/0364841 A1Nissei Plastic Industrial Co., Ltd.
- Injection molding machine29 Mar 2018US 2018/0085981 A1Fanuc Corporation
- Injection molding process14 May 2009US 2009/0121394 A1
Most cited
By later US patents
- Injection/compression molding method, a die for injection/compression molding and an injection/compression molding machine68US 5,340,528 ASony Corporation · 1994
- Hold-pressure control and clamping in stacked multi-parting molding system having desynchronized injection periods13US 5,043,129 APrimtec · 1991
- Mechanism for the automatic manufacturing of articles made from plastic, particularly from recyclable plastic13US 5,375,991 ASpies Kunststoff-Recycling GmbH Company · 1994
- Method of reducing internal stresses and improving the mechanical properties of injection molded thermoplastic resins11US 4,237,089 ASunds AB · 1980
- Multi-parting molding system with clamping means8US 4,990,299 APrimtec · 1991